1.A dove/ pigeon coos/ croods/ croodles.
2.The doves were cooing in the trees.
3.I shouted a victory chant "Ga ga - goo goo."
4.I sang a little song "Ga ga goo goo - ga goo ga."
5.To utter the murmuring sound of a dove or pigeon or a sound resembling it.
6.Germany is famous for its cuckoo clocks.
7.Thunder rumbled in the distance.
8.I called out again "Mama - Dada - ga ga - goo goo."
9.The train rumbled through the plain.
10.He muttered some rude remarks.